In separate Fox News Sunday interviews, New Jersey Gov. Chris Christie and former Florida Gov. Jeb Bush attacked President Obama after he announced plans to use his Oval Office powers to try to tighten gun-control laws.

Obama is expected to use executive action to require small-scale gun sellers to order background checks on prospective buyers and tighten laws for gun sales to those who have committed domestic-abuse offenses.

“Whenever he doesn’t get what he wants … this president acts like a king, like a dictator,” he said.

Meanwhile, Bush said the president "has a pattern of taking away rights of citizens."

Bush suggested that he didn’t object in principle to keeping guns out of the hands of criminals, but that he is wary of how far-reaching and burdensome the proposed changes might be on small-scale gun sellers.

“How do you know?” he asked. “The better approach would be to punish people who violate federal gun laws. … If it’s such a great idea let (Obama) go to Congress.”

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